Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)2PF6

K. Onda; M. Shimizu; F. Sakaguchi; S. Ogihara; T. Ishikawa; Y. Okimoto; S. Koshihara; X. F. Shaod; Y. Nakano; H. Yamochi; G. Saito

doi:10.1016/j.physb.2009.11.054

Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)₂PF₆

K. Onda, M. Shimizu, F. Sakaguchi, S. Ogihara, T. Ishikawa, Y. Okimoto, S. Koshihara, X. F. Shaod, Y. Nakano, H. Yamochi, G. Saito

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Abstract

We examined the ultrafast response of the metallic high-temperature phase in the conducting charge transfer complex (EDO-TTF)₂PF₆. A large reflectivity change of approximately 10% was observed when the intra-molecular band was excited by a weak 3.1eV ultraviolet light pulse. The lifetimes of the photo-induced states were 0.2 and 0.7ps in the Drude-like band and the intra-molecular band, respectively. Measurement of the photo-induced spectrum just after photo-excitation and simulation using the Drude model revealed that the electronically excited EDO-TTF molecules shortened the relaxation time of conduction electrons and reduced the reflectivity of the Drude-like band.

Original language	English
Pages (from-to)	S350-S352
Journal	Physica B: Condensed Matter
Volume	405
Issue number	11 SUPPL.
DOIs	https://doi.org/10.1016/j.physb.2009.11.054
Publication status	Published - Jun 1 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2009.11.054

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Onda, K., Shimizu, M., Sakaguchi, F., Ogihara, S., Ishikawa, T., Okimoto, Y., Koshihara, S., Shaod, X. F., Nakano, Y., Yamochi, H., & Saito, G. (2010). Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)₂PF₆. Physica B: Condensed Matter, 405(11 SUPPL.), S350-S352. https://doi.org/10.1016/j.physb.2009.11.054

Onda, K, Shimizu, M, Sakaguchi, F, Ogihara, S, Ishikawa, T, Okimoto, Y, Koshihara, S, Shaod, XF, Nakano, Y, Yamochi, H & Saito, G 2010, 'Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)₂PF₆', Physica B: Condensed Matter, vol. 405, no. 11 SUPPL., pp. S350-S352. https://doi.org/10.1016/j.physb.2009.11.054

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title = "Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)2PF6",

abstract = "We examined the ultrafast response of the metallic high-temperature phase in the conducting charge transfer complex (EDO-TTF)2PF6. A large reflectivity change of approximately 10% was observed when the intra-molecular band was excited by a weak 3.1eV ultraviolet light pulse. The lifetimes of the photo-induced states were 0.2 and 0.7ps in the Drude-like band and the intra-molecular band, respectively. Measurement of the photo-induced spectrum just after photo-excitation and simulation using the Drude model revealed that the electronically excited EDO-TTF molecules shortened the relaxation time of conduction electrons and reduced the reflectivity of the Drude-like band.",

author = "K. Onda and M. Shimizu and F. Sakaguchi and S. Ogihara and T. Ishikawa and Y. Okimoto and S. Koshihara and Shaod, {X. F.} and Y. Nakano and H. Yamochi and G. Saito",

note = "Funding Information: This work was in part supported by a Grant-in-Aid for Scientific Research (B) no. 20340074 and a Grant-in-Aid for Scientific Research on Innovative Areas no. 21110512 from MEXT Japan, and by the G-COE program of JSPS Japan.",

year = "2010",

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doi = "10.1016/j.physb.2009.11.054",

language = "English",

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T1 - Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)2PF6

AU - Onda, K.

AU - Shimizu, M.

AU - Sakaguchi, F.

AU - Ogihara, S.

AU - Ishikawa, T.

AU - Okimoto, Y.

AU - Koshihara, S.

AU - Shaod, X. F.

AU - Nakano, Y.

AU - Yamochi, H.

AU - Saito, G.

N1 - Funding Information: This work was in part supported by a Grant-in-Aid for Scientific Research (B) no. 20340074 and a Grant-in-Aid for Scientific Research on Innovative Areas no. 21110512 from MEXT Japan, and by the G-COE program of JSPS Japan.

PY - 2010/6/1

Y1 - 2010/6/1

N2 - We examined the ultrafast response of the metallic high-temperature phase in the conducting charge transfer complex (EDO-TTF)2PF6. A large reflectivity change of approximately 10% was observed when the intra-molecular band was excited by a weak 3.1eV ultraviolet light pulse. The lifetimes of the photo-induced states were 0.2 and 0.7ps in the Drude-like band and the intra-molecular band, respectively. Measurement of the photo-induced spectrum just after photo-excitation and simulation using the Drude model revealed that the electronically excited EDO-TTF molecules shortened the relaxation time of conduction electrons and reduced the reflectivity of the Drude-like band.

AB - We examined the ultrafast response of the metallic high-temperature phase in the conducting charge transfer complex (EDO-TTF)2PF6. A large reflectivity change of approximately 10% was observed when the intra-molecular band was excited by a weak 3.1eV ultraviolet light pulse. The lifetimes of the photo-induced states were 0.2 and 0.7ps in the Drude-like band and the intra-molecular band, respectively. Measurement of the photo-induced spectrum just after photo-excitation and simulation using the Drude model revealed that the electronically excited EDO-TTF molecules shortened the relaxation time of conduction electrons and reduced the reflectivity of the Drude-like band.

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 11 SUPPL.

ER -

Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)₂PF₆

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